http://pdb.dieschwalbe.de/search.jsp?expression=PROBID=%27P1312522%27
It is an attempt for 930.1: 1.Nb1-a3 Pb7-b5 2.Ng1-h3 Pb5-b4 3.Rh1-g1 Pb4xa3 4.Pb2xa3 Nb8-c6 5.Bc1-b2 Pd7-d6 6.Bb2-e5 Bc8xh3 7.Pg2xh3 Nc6xe5(+pc6)…
...and a candidate for Wenigsteiner of the year.
Simply unforgettable!
http://pdb.dieschwalbe.de/search.jsp?expression=PROBID=%27P1312279%27
It is not the first four-move extension of the Jacobs theme. If I remember correctly, this composer published an article…
Diagram No. 92 is false.
Thanks Georgy for this very lucid explanation! You made understand the problem better!
http://pdb.dieschwalbe.de/search.jsp?expression=PROBID=%27P1312113%27
ad 949) http://pdb.dieschwalbe.de/search.jsp?expression=PROBID=%27P1312046%27